11123021995 has 4 divisors (see below), whose sum is σ = 13347626400. Its totient is φ = 8898417592.

The previous prime is 11123021983. The next prime is 11123022011. The reversal of 11123021995 is 59912032111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11123021995 - 2⁵ = 11123021963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11123021995.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1112302195 + ... + 1112302204.

It is an arithmetic number, because the mean of its divisors is an integer number (3336906600).

Almost surely, 2^11123021995 is an apocalyptic number.

11123021995 is a deficient number, since it is larger than the sum of its proper divisors (2224604405).

11123021995 is an equidigital number, since it uses as much as digits as its factorization.

11123021995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224604404.

The product of its (nonzero) digits is 4860, while the sum is 34.

It can be divided in two parts, 111230 and 21995, that added together give a square (133225 = 365²).

The spelling of 11123021995 in words is "eleven billion, one hundred twenty-three million, twenty-one thousand, nine hundred ninety-five".